Remove SkSurfaceProps gamma-correctness flag entirely.

tests/SRGBMipMapTest.cpp

Index: tests/SRGBMipMapTest.cpp
diff --git a/tests/SRGBMipMapTest.cpp b/tests/SRGBMipMapTest.cpp
index f798119ad56b81fbf8d5206ab0cbce8a0a16af9c..12f23adbbf7d0d3510addd9aee2c77ab3252f54c 100644
--- a/tests/SRGBMipMapTest.cpp
+++ b/tests/SRGBMipMapTest.cpp
@@ -120,22 +120,13 @@ DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(SRGBMipMaps, reporter, ctxInfo) {
     SkAutoTUnref<GrTexture> texture(texProvider->createTexture(desc, SkBudgeted::kNo, texData, 0));
 
     // Create two draw contexts (L32 and S32)
-    SkSurfaceProps l32Props(SkSurfaceProps::kLegacyFontHost_InitType);
-    SkSurfaceProps s32Props(SkSurfaceProps::kGammaCorrect_Flag,
-                            SkSurfaceProps::kLegacyFontHost_InitType);
     sk_sp<SkColorSpace> srgbColorSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
     sk_sp<GrDrawContext> l32DrawContext = context->newDrawContext(SkBackingFit::kExact, rtS, rtS,
                                                                   kSkia8888_GrPixelConfig,
-                                                                  nullptr,
-                                                                  0,
-                                                                  kDefault_GrSurfaceOrigin,
-                                                                  &l32Props);
+                                                                  nullptr);
     sk_sp<GrDrawContext> s32DrawContext = context->newDrawContext(SkBackingFit::kExact, rtS, rtS,
                                                                   kSkiaGamma8888_GrPixelConfig,
-                                                                  std::move(srgbColorSpace),
-                                                                  0,
-                                                                  kDefault_GrSurfaceOrigin,
-                                                                  &s32Props);
+                                                                  std::move(srgbColorSpace));
 
     SkRect rect = SkRect::MakeWH(SkIntToScalar(rtS), SkIntToScalar(rtS));
     GrNoClip noClip;